KCET Optics Topics 2025

KCET Optics Topics 2025 is divided into two major topics Ray Optics and Optical Instruments & Wave Optics. KCET 2025 Optics topics include Refraction, Total Internal Reflection, Refraction at Spherical Surfaces and by Lenses, Refraction through a Prism, Some Natural Phenomena due to Sunlight, The Rainbow, Optical Instruments, etc. Candidates who are preparing to appear for KCET 2025 must know that the expected weightage for the Optics chapter is 4 to 6 marks. As per previous years' trends, Lenses, Reflection/Refraction, and Optical Instruments can be considered important topics from Ray Optics and Interference and Diffraction from Wave Optics. In this article, we have discussed the KCET 2025 Optics Topics along with the expected weightage.

Also Check - KCET Subject Wise Syllabus 2025

KCET Optics Topics 2025

Check the list of topics covered in the Ray Optics and Optical Instruments and Wave Optics in the following table.

Also Check: KCET Previous Years Question Papers

KCET 2025 Optics Important Topics

Check the table below to get an idea of important KCET 2025 Optics topics and Sub-topics.

KCET 2025 Optics Weightage

As per the previous years' analysis, candidates can expect at least 4 to 6 marks from Ray Optics and Optical Instruments and 2 to 4 marks from Wave Optics.

KCET 2025 Optics Books

The table contains the list of books and their authors/publishers that are suitable for KCET 2025 Optics Preparation.

• NCERT Physics Books from Class 11 and 12
• Concepts of Physics by H.C. Verma
• Understanding Physics for JEE Main & Advanced – Optics & Modern Physics by D.C. Pandey
• KCET Physics Chapter-wise and Topic-wise Solved Papers by Arihant Publications
• Objective Physics by Dinesh Publications

KCET 2025 Optics Questions

1. Define total internal reflection.

When a light beam strikes the water, some of the light is reflected, and some are refracted. This phenomenon is called total internal reflection.

2. Dispersion can be observed through ______

• Wood
• Wall
• Paper
• Prism

Answer: d) Prism

Explanation: A prism is an optical device through which we can observe the dispersion of white light into its constituent colours.

3. Which among the following is the property of light?

• Diffraction
• Reflection
• Total internal reflection
• All the options

Answer: d) All the options.

Explanation: Light can undergo refraction, diffraction, reflection, and total internal reflection.

4. What are the types of images formed?

• Real
• Virtual
• Neither real nor virtual
• Both real and virtual

Answer: d) Both real and virtual.

Explanation: Images formed are of two types, real and virtual.

5. Light has the properties of

• Wave
• Particle
• Neither wave nor particle
• Both wave and particle

Answer: d) Both wave and particle.

Explanation: Light displays both wave and particle nature.

6. State true or false: Photons have a mass of more than two gms.

• TRUE
• FALSE

Answer: b) FALSE

Explanation: The photon is a massless quantity that moves at a vacuum’s speed.

7. The formation of images by mirrors is studied by:

• Geometrical optics
• Physical optics
• Neither Physical optics nor Geometrical optics
• None of the options

Answer: a) Geometrical Optics

Explanation: Geometrical optics deals with the formation of images by lenses, mirrors, and other devices that use light.

8. Choose YES or NO: The higher-density materials will have greater refractive indices.

• YES
• NO

Answer: a) YES

9. Refraction is used in devices like

• Cameras
• Projectors
• Telescopes
• All the above options

Answer: d) All the above options.

10. The bending of light when it passes from one medium to another is called_____

• Diffraction
• Reflection
• Total internal reflection
• Refraction

Answer: d) Refraction

Explanation: Refraction is the phenomenon that takes place due to the bending of light when it travels from one medium to another.

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